Abstract
ABSTRACTOur recent work demonstrates that inactivating mutations in phosphatase and tensin homolog (PTEN) are sufficient to drive macropinocytosis in the context of AMP-activated protein kinase (AMPK) activation. Given that blocking macropinocytosis limits PTEN-deficient prostate tumor growth, AMPK or phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K) inhibitors could have therapeutic value in castration-resistant prostate cancer patients, particularly when used in combination with standard of care therapies.Abbreviations: ATG5: autophagy related 5; NHE: Na(+)/H(+) exchanger; PAK1: p21-activated kinase 1; PI3K: phosphatidylinositol-4,5-bisphosphate 3-kinase; PIP3: phosphatidylinositol (3,4,5)-trisphosphate; PIP2: phosphatidylinositol (4,5)-bisphosphate; RAC1: Rac family small GTPase 1
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